I can't convince myself that the 2nd argument in schedule_delayed_work
called from cache_reap() function make any sense:
static void cache_reap(void *unused)
{ ...
check_irq_on();
up(&cache_chain_sem);
drain_remote_pages();
/* Setup the next iteration */
schedule_delayed_work(&__get_cpu_var(reap_work), REAPTIMEOUT_CPUC + smp_processor_id());
}
Suppose one have a lucky 1024-processor big iron numa box,
cpu0 will do cache_reap every 2 sec (REAPTIMEOUT_CPUC = 2*HZ).
cpu512 will do cache_reap every 4 sec,
cpu1023 will do cache_reap every 6 sec.
Is the skew intentional on different CPU? Why different interval for
different cpu#?
- Ken
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